12y+21=6y+21

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Solution for 12y+21=6y+21 equation:


12y+21=6y+21

We simplify the equation to the form, which is simple to understand 
12y+21=6y+21

We move all terms containing y to the left and all other terms to the right. 
+12y-6y=+21-21

We simplify left and right side of the equation. 
+6y=0

We divide both sides of the equation by 6 to get y. 
y=0

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